Metastatic Brain Tumors

Year 2014, Volume: 39 Issue: 2, 191 - 202, 22.07.2014

Ersin Hacıyakupoğlu Kadir Oktay , Semih Kıvanç Olguner Derviş Mansuri Yılmaz Sebahattin Hacıyakupoğlu

https://doi.org/10.17826/cutf.33688

Abstract

Metastatic tumor is secondary spread to the central nervous system of primer systemic cancers originating from tissues other than the central nervous system. In adults; there are metastases respectively from lungs, breasts, malign melanoma, renal cell carcinoma, colon and thyroid cancers. 30-60% of lung cancers metastasis to the brain. In children there are quite a few cerebral metastases. Most commonly leukemia, lymphoma, osteogenic sarcoma, rhabdomyosarcoma and germ cell tumors metastasis to the brain. %50 of malign melanoma, lung, breast and colon cancers intend to make multipl metastases but renal cell cancers intend to make solitary metastasis.While lung cancers metastasis to brain in 6-9 months after the definitive diagnosis, renal cancers in 1 year, colon cancers in 2 years, breast cancers and malign melanoma in 3 years metastasis to brain. In 6% of cases there are cerebral metastasis while there isn"t a symptom of a primary tumor. For treatment corticosteroids, surgery, Radiotherapy(RT), Chemotherapy(CT) and Stereotactic Radiosurgery(SRS) can be implemented. Small cell lung cancers, lymphoma, germ cell tumors are sensitive to RT and CT. Non small cell lung cancers, renal, colon cancers and malign melanoma are radioresistant. The purposes in the surgery of the metastatic brain tumors are; total resection of tumors without neurologic deficits, decreasing the intracranial pressure and decreasing the dose of postoperative radiotherapy. Key Words: Metastatic brain tumors, Stereotactic radiosurgery, Malign melanoma, Lung cancers, Renal cell carcinoma, Radiotherapy, Chemotherapy

Keywords

Metastatic brain tumors, Stereotactic radiosurgery, Malign melanoma, Lung cancers, Renal cell carcinoma, Radiotherapy, Chemotherapy

Metastatik Beyin Tümörleri

Abstract

Metastatik tümör; orjinini Santral Sinir Sistemi (SSS) dışındaki dokulardan alan primer sistemik kanserlerin sekonder olarak SSS ne yayılmasıdır. Erişkinde SSS ne en sık metastaz sırasıyla akciğer, meme, malign melanom, renal hücreli Ca, kolon ve tiroid kanserinden gelir. Akciğer kanseri %30-60 oranında beyine metastaz yapar. Çocukta beyin metastazı oldukça azdır. En sık lösemi, lenfoma, osteogenik sarkom, rhabdamyosarkom ve germ hücreli tümörler beyne metastaz yaparlar. Malign melanom, akciğer, meme ve kolon kanserleri %50 oranında multipl metastaz yaparken renal tümörler tek metastaz yapmaya meyillidir. Akciğer kanseri tanı koyduktan 6-9 ay sonra beyne metastaz yaparken, renal kanser 1 yıl, kolon kanseri 2 yıl, meme kanseri ve malign melanom 3 yıl sonra beyine metastaz yapabilir. %6 olguda primer tümöre ait hiçbir bulgu yokken beyine metastaz olmaktadır. Tedavide verilen ilk ilaç kortikosteroiddir, daha sonra ameliyat, Radyoterapi (RT), Kemoterapi (KT) ve Stereotaktik Radyosurgery (SRS) yapılabilir. Küçük hücreli akciğer kanseri, lenfoma, germ hücreli tümörler RT ve KT"ye hassastırlar. Non small akciğer kanserleri, renal, kolon, malign melanom radiorezistandır. Eğer hastada 3-4 aydan uzun yaşam süresi bekleniyorsa agresif tedavi uygulanır. RT"de verilen dozun total miktarı ve veriliş süresi ile ilgili akut ve kronik komplikasyonlar meydana gelir. Metastatik tümörlerin ameliyatlarında amaç nörolojik defisit olmadan tümörün total çıkartılması, intrakranial basıncın azaltılması ve eğer postoperatuar RT yapılacaksa dozun mümkün olduğu kadar düşük tutulmasıdır. Önceleri multipl metastazlar opere edilmemekte idi ancak ne kadar çok metastaz alınırsa RT ve KT den o kadar çok cevap alındığından günümüzde ameliyat önemlidir. Anahtar Kelimeler: Metastatik beyin tümörleri, Stereotaktik radyosurgery, Malign melanom, Akciğer kanserleri, Renal hücreli karsinom, Radyoterapi, Kemoterapi

Keywords

Metastatik beyin tümörleri, Stereotaktik radyosurgery, Malign melanom, Akciğer kanserleri, Renal hücreli karsinom, Radyoterapi, Kemoterapi

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• Yazışma Adresi / Address for Correspondence: Dr. Kadir Oktay Çukurova Üniversitesi Tıp Fakültesi Beyin ve Sinir Cerrahisi Anabilim Dalı Email: [e-mail] geliş tarihi/received :13.11.2013 kabul tarihi/accepted:16.12.2013